Road-maintaining machine



IA9Z383 June m 1924.

J. R. ROYER ROAD MAINTAINING MACHINE Filed May 2, I922 PRN mm M Patented June 10, 192 4.

UNITED STATES PATENT OFFICE.

ROAD-MAINTAINING MACHINE.

Application filed May 2,

To all whom it may concern:

Be it known that I, Jnssn R. Rorrzn, a citizen of the United States of America, and a resident of J ancsville, Bremer County, Iowa, have invented certain new and useful Improvements in Road-Maintaining Machines, of which the following is a specification.

My invention relates to improvements in road-maintaining machines, and the object of my improvements is to furnish for the surface treatment of the soil of roads or other places, a transportable machine having a soil-working implement, and having means for supporting and adjustably holding this implement in any desired operating position for differential treatments of the surface to be operated upon.

I have accomplished this object by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which Fig. 1 is a perspective view'of my improved roadgrading machine. and Fig. 2 is a fragmentary top plan'of parts thereof, While Fig. 3 is a fragmentary perspective showing the adjustable connections between the soilworking implement and the sub-frame of the machine. Fi 4 is a detail view of the loose connection between the forward ends of the sub-frame bars and the main frame.

My improved machine comprises a V- shaped main frame composed of side bars 1 united at their convergent forward ends by a rigid steel plate, and at their divergent rear ends by a rigid cross-bar, and this main frame is supported on rear carrying-wheels 2 and on forward laterally turnable carrying-wheels 3. A sub-frame is ositioned below the main frame, longitudinally, and is composed of side T-bars 6 whose convergent forward ends are loosely pivoted for vertical or horizontal swinging, independently of each other, on pivotbolts 32 mounted in the lower ends of hangers 4 dependent from the bars 1, braced at 5. The T-bars have relatively large holes 34 traversed by the pivot-bolts 32, to allow the T-bars to be swung in any direction limitedly, for various changes of position, and on the bolts are secured the nuts 33.

A soil-working implement of any suitable type may be supported adjustably on the divergent bars 6 of said sub-frame. and as illustrated, this implement is an elongated 1922. -Seria1 No. 557,813.

scraping blade 14 of a well-known form, longitudinally slightly troughed forwardly.

As shown in said Fig. 3, an an le-iron bar 19 may be secured medially an longitudinally along the back of this scraper, and ,a pair of short angle-bars 17 may be fastened to the back of the scraper at the top not far from either extremity, and the angle-bars 17 and 19 have vertically alined holes to receive therethrough a short standard 12 secured by split-keys above and below the angle-bars.

The numeral 7 denotes a slide, being an elongated plate with its longitudinal edges bent over toward each other to embrace and slide upon the oppositely directed flanges of the T-bar 6. One of the flanges may have a row of holes to receive the headed pin 8 immediately back of the slide 7 to limit its backward movement. The slide 7 has a depending longitudinal web 9 with a row of'holes 13 to adjustably receive in either a bolt 15 which connects the upper ends of a pair of braces 10 to said web, the lower ends of said braces being connected by a bolt 18 to the lower part of the standard 12 above said angle-bar 19. The upper end of the standard 12 is between and connected to a pair of lugs 11 on the lower face of the slide 7 by means of a pivot-bolt 16. It will be seen that this construction gives a t-iltable supporting means at each end of the scraper 14 adjustable to a desired angle relative to the surface to be operated upon.

About midway of the length of the main frame 1 pairs of longitudinally spaced standards 21 are rigidly mounted upon the slde-bars, the lower parts of the standards being connected by cross-bars 20 of angleiron. Braces 31 are connected between the upper parts of the standards and the sidebars 1 at front and rear. Other braces connect the middles of the angle-bars 20 with the upper parts of said standards. Transversely alined bearing sleeves 23 are su ported rigidly on the tops of said standar s to receive the alined but unconnected rotatable shafts 22 having thereon worm-threads 24. In bearings mounted on the standards on each side are seated the ends of short longitudinal rotatable shafts 27 carrying worm-wheels 25 which are in mesh with the worms 24 above them. On each worm-shaft 22 at the inner end thereof is fixed a large hand-wheel 26 whereby either set of wormgears may be independently manually operated. A projecting radial arm 28 is fixed on each worm-wheel 25, and a connectingrod 29 is pivotally connected between the outer end of each arm 28 and the adjacent part of the T-bar 6 on that side. Rotation of the hand-Wheel 26 will actuate the worm gearing to swing up or down the T-bar 6 on that side to correspondingly transversely tilt adjustingly the end of the scraper 14: on that side.

At the right-hand side only of the machine, a connecting-rod 30 is pivotally pintle-connected between a air of short fixed standards on the main rame, and has its outer end eye-connected with the lower part of the right-hand connecting-rod 29.

This connecting-rod 30 has a row of longitudinally alined in-holes permitting adjustments longitudinally to allow the scraper to be adjustably shifted transversely of the main frame.

My improved machine is especially designed for any of the uses incident to road maintenance, may be operated by a single person, and may be motor-driven if desired.

The road-working implement may be adjusted in position relative to the main frame in any direction to properly treat the surface thereunder by easy means with practically no loss of time. The worm-gearing acts to lock the scraper adjusting means or rod 29 in any position of elevation or tilting.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. A road-maintaining machine, comprising a frame mounted on means for transportation, a V-shaped pivotally connected ably connected to both of the said side' parts of saidsub-frame.

2. In a road-maintaining machine, a frame mounted for transportation, a pivotally connected sub-frame having its side forward parts mounted hingedly on said frame for independently swinging, mechanisms operatively connected between said frame and the said parts of said sub-frame for independently adjusting their positions and holding them releasably when adjusted, and an implement connected to both parts of the sub-frame.

3. A road maintaining machine, comprising a frame mounted on means for transportation, a sub-frame having side forward parts mounted hingedly on said frame, mechanisms mounted on said frame and connected to said sub-frame parts for independently adjusting their positions, means for holding said sub-frame parts in their adjusted positions, an implement, and means for supporting opposite parts of said implement on said sub-frame parts for relative adjustments thereon longitudinally and tilta y.

Signed at Waterloo, Iowa, this 17th day of April, 1922.

JESSE R. ROYER 

